Question about 1999 Mitsubishi Galant

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Galant 2000yr, engine 4G94 with ETV electronic trottle valve, how to repair, engine check light blinks when engine is running, engine does not rev over 2000 RPM, diagnosis shows trottle valve, took off from engine and butterfly valve is tight, magnet looks ok, coil is still wrapped, how can I check with digital meter? to confirm if ok, if the unit need to service tell me how, I am mechanically minded.

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Posted on Jan 02, 2017

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SOURCE: 2000 gdi 4g94 galant. fault,

Has this always bee like this ?? If so thats because your cars computer is programed that way, Different cars are programmed differently, depending on their use, for example sport cars are programmed to be faster and pull more air and fuel to run faster. But those for home or economy use like yours is set up to be economical. If you want this changed speak to a local car garage specializing in fast cars and modding, they will be able to reprogram your cars cpu or replace it with a modded one.

If that wasnt always so then have a diagnostic done on the cars computer, to look at the throttle body position sensor, oxygen sensor, fuel pressure sensor and electronic accelerator one of those are malfunctioning an needs changing.

Posted on Apr 02, 2011

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SOURCE: hi my TPS sensor is

Check on e-bay, the seller will ship it to you. TJ

Posted on Aug 05, 2011

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That is pretty much normal. When the AC engages it's compressor it triggers the idle sensor to increase idle to compensate for the huge load that an AC unit puts on a vehicle. If your AC is producing cold air, approx. 40 degrees on high, then it should be ok. Power loss is all part of the program with AC. It takes much more noticeable power to run an AC unit on a vehicle, and especially a 4 cylinder. Ever see your house lights dim a bit when you turn on the Home AC central air? :.) Every item under your hood connected to your engine steals power from the engine. The AC is the king of all takers of power.

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1 Answer

Engine light on wont go over 3000rpm or under 2000rpm

Try the IAC valve this regulates the idle.

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